oj.uz

답안 #266416

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
266416 2020-08-15T08:51:19 Z dolphingarlic Two Antennas (JOI19_antennas) C++14
22 / 100
 404 ms 33448 KB 
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

const int oo = 1e9;

int n, a[200001], b[200001], h[200001], ans[200001];
vector<int> ins[400001], rem[400001];
int segtree[800001];

void build(int node = 1, int l = 1, int r = n) {
    segtree[node] = -oo;
    if (l != r) {
        int mid = (l + r) / 2;
        build(node * 2, l, mid); build(node * 2 + 1, mid + 1, r);
    }
}

void update(int pos, int val, int node = 1, int l = 1, int r = n) {
    if (l == r) segtree[node] = val;
    else {
        int mid = (l + r) / 2;
        if (pos > mid) update(pos, val, node * 2 + 1, mid + 1, r);
        else update(pos, val, node * 2, l, mid);
        segtree[node] = max(segtree[node * 2], segtree[node * 2 + 1]);
    }
}

int query(int x, int y, int node = 1, int l = 1, int r = n) {
    if (l > y || r < x) return -oo;
    if (l >= x && r <= y) return segtree[node];
    int mid = (l + r) / 2;
    return max(query(x, y, node * 2, l, mid), query(x, y, node * 2 + 1, mid + 1, r));
}

void solve() {
    build();
    for (int i = 1; i <= n; i++) {
        for (int j : ins[i]) update(j, h[j]);
        ans[i] = max(ans[i], query(i - b[i], i - a[i]) - h[i]);
        for (int j : rem[i]) update(j, -oo);
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> h[i] >> a[i] >> b[i];
        ins[i + a[i]].push_back(i);
        rem[i + b[i]].push_back(i);
    }
    int q;
    cin >> q;
    // for (int i = 1; i <= q; i++) {
    //     cin >> queries[i].first.first >> queries[i].first.second;
    // }
    if (q == 1) {
        memset(ans, -1, sizeof ans);
        solve();
        for (int i = 1; i <= n; i++) h[i] *= -1;
        solve();
        cout << *max_element(ans + 1, ans + n + 1);
    } else {
        cout << "TODO :(";
    }
    return 0;
}

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 19200 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 19200 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 362 ms 32376 KB Output is correct
2 Correct 359 ms 33400 KB Output is correct
3 Correct 275 ms 29944 KB Output is correct
4 Correct 404 ms 33448 KB Output is correct
5 Correct 153 ms 26360 KB Output is correct
6 Correct 371 ms 33336 KB Output is correct
7 Correct 290 ms 31864 KB Output is correct
8 Correct 344 ms 33400 KB Output is correct
9 Correct 51 ms 22016 KB Output is correct
10 Correct 337 ms 33300 KB Output is correct
11 Correct 206 ms 28024 KB Output is correct
12 Correct 340 ms 33400 KB Output is correct
13 Correct 231 ms 30044 KB Output is correct
14 Correct 222 ms 29344 KB Output is correct
15 Correct 213 ms 30072 KB Output is correct
16 Correct 194 ms 30768 KB Output is correct
17 Correct 239 ms 29684 KB Output is correct
18 Correct 212 ms 29560 KB Output is correct
19 Correct 224 ms 29616 KB Output is correct
20 Correct 217 ms 29636 KB Output is correct
21 Correct 226 ms 29664 KB Output is correct
22 Correct 226 ms 29936 KB Output is correct
23 Correct 226 ms 29640 KB Output is correct
24 Correct 197 ms 30324 KB Output is correct

Subtask #4
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 19200 KB Output isn't correct
2 Halted 0 ms 0 KB -